Technologies & Architecture of PePay π
Technologies Used in PePay π
PePay leverages a modern stack to ensure security, scalability, and performance for seamless cryptocurrency payment processing. Here's an overview of the core technologies:
1. Backend Technologies βοΈ
Node.js: A lightweight, high-performance runtime for handling asynchronous operations and building scalable APIs.
Express.js: Simplifies the creation of RESTful APIs to serve the backend.
PostgreSQL: A robust relational database for storing user data, invoices, and transactions.
GraphQL (Optional): Enables flexible and efficient querying for complex use cases.
Webhooks: Provides real-time updates to merchants for payment and invoice events.
2. Blockchain Integration π
Ethereum (EVM-compatible chains): Supports Ethereum, BSC, Avalanche, and Arbitrum.
Solana: Offers fast and low-cost transactions.
Token Management: Handles various tokens like ETH, SOL, and USDC.
3. Front-End & Dashboard π₯οΈ
React.js: Powers the merchant and admin dashboards for an intuitive user interface.
Tailwind CSS: Provides responsive and visually appealing design.
Iframe Embed: For seamless integration of payment interfaces.
4. Payment Features π°
Live Exchange Rates: Uses APIs like CoinGecko to fetch real-time token-to-USD conversion rates.
Automatic Token Conversion: Converts crypto to stablecoins (e.g., USDC) based on merchant preferences.
Secure Transactions: Validates and confirms payments using blockchain data.
5. Security π
Encryption: Protects sensitive data, including API keys and user information.
Rate Limiting: Prevents abuse of APIs by limiting requests.
Webhook Authentication: Ensures the authenticity of notifications sent to merchants.
PePayβs Architecture Overview ποΈ
PePay is designed with a modular and scalable architecture to handle a wide variety of crypto payment scenarios. Here's a high-level view of its components:
High-Level Architecture Diagram π
Key Components π§©
1. Backend (API Layer) π
Exposes RESTful and/or GraphQL APIs for:
User authentication and management.
Invoice creation and retrieval.
Payment tracking and status updates.
Manages token configurations, exchange rates, and user preferences.
2. Blockchain Monitoring π
Connects to blockchain nodes or indexers (e.g., Infura, QuickNode) for:
Detecting transactions in real-time.
Verifying payment amounts and token types.
Uses WebSocket or polling methods for transaction monitoring.
3. Database ποΈ
Central storage for:
Users, invoices, payments, and tokens.
Exchange rate history for accurate record-keeping.
Optimized with JSON fields for flexibility in storing metadata.
4. Merchant & Admin Portal π₯οΈ
User-friendly dashboards for:
Managing invoices and payments.
Setting token preferences.
Monitoring analytics and reports.
5. Webhooks π
Sends notifications to merchants about payment statuses:
Paid, expired, underpaid, or overpaid.
Supports signature-based authentication for secure communication.
6. Security Measures π
Implements industry-standard practices:
HTTPS for API communication.
Encrypted storage of sensitive data.
Time-based API keys for enhanced security.
Benefits of PePayβs Architecture π―
Scalability: Modular design allows for easy addition of new blockchains or tokens.
Flexibility: Merchants can choose token preferences globally or per invoice.
Security-First: Advanced measures ensure data integrity and transaction safety.
User-Centric: Simple integration and customizable features for businesses.
This robust architecture ensures PePay remains reliable, secure, and easy to use for merchants globally. π
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